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[JQ权威指南]JQuery操作XML数据

2016-08-02 09:02 363 查看

(1)功能描述
在上个例子上加一个ID，并在页面中增加一个删除链接，向服务端发起删除请求，服务端接收请求后，删除学生对应的ID记录。修改XML数据。。。

HTML:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript"  src="Jscript/jquery-1.4.2.min.js"></script>
<style type="text/css">
body{font-size:13px}
.iframe{width:320px;border:solid 1px #666}
.iframe .title{padding:5px;background-color:#eee;}
.iframe .content{padding:8px; font-size:12px;}
.btn {border:#666 1px solid;padding:2px;width:80px;
filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=#ffffff, EndColorStr=#ECE9D8);}
</style>
<script type="text/javascript">
var arrGrade = new Array(980886, 980666);
function lnk_Delete(i) {
var btnYN = confirm("您真的要删除吗？");
if (btnYN) {
$.post("7-7.ashx?Id=" + i, function (data) {
if (data) {
$("#Button1").click();
} else {
alert(data);
}
});
}

}
$(function () {
$("#Button1").click(function () {
var strHTML = "";
$.ajax({
url: '7-7.xml',
dataType: 'xml',
success: function (data) {
$.each(arrGrade, function (i) {
var $strUser = $(data).find("User[grade=" + arrGrade[i] + "]");
strHTML += "<h3>年级：" + arrGrade[i] + "</h3>";
$strUser.each(function () {
var $strId = $(this).children("id").text();
strHTML += "编号：" +$strId+"<a href='javascript:' onclick='lnk_Delete("+$strId+")'>删除</a><br> "
strHTML += "姓名：" + $(this).children("name").text() + "<br>";
strHTML += "性别：" + $(this).children("sex").text()  + "<br>";
strHTML += "邮箱：" + $(this).children("email").text() + "<hr>";

});
});
$("#Tip").html(strHTML);
}
});
});
});
</script>
</head>
<body>
<div class="iframe">
<div class="title">
<input id="Button1" type="button" class="btn" value="获取数据" />
</div>
<div class="content">
<div id="Tip"></div>
</div>
</div>
</body>
</html>

服务端：

<%@ WebHandler Language="C#" Class="_7_7" %>

using System;
using System.Web;
using System.Xml;

public class _7_7 : IHttpHandler {

public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "text/plain";
string strId = context.Request.QueryString["Id"].ToString();

int intStatus = 0;
XmlDocument xmlDoc = new XmlDocument();
try
{
xmlDoc.Load(context.Server.MapPath("7-7.xml"));
XmlNodeList xmlNodeList = xmlDoc.SelectNodes("Info/User[id='" + strId + "']");
XmlNode xmlNode = xmlNodeList.Item(0);
xmlNode.ParentNode.RemoveChild(xmlNode);
xmlDoc.Save(context.Server.MapPath("7-7.xml"));
int Status = 1;

}
catch (Exception) {
throw;
}
context.Response.Write(intStatus);
}

public bool IsReusable {
get {
return false;
}
}

}

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